Radiator



"J. B. GABRIELSON.

' RADIATOR.

APPLICATION FILED JULY [8, 1919.

1,3 2, 5, Patgnted Dec. 21, 1920.

PATENT OFFICE.

JOHN B. GAIBBIELSON, OF HANOVER, PENNSYLVANIA.

nnninmon.

Specification of Letters Patent.

PatentedjDec. 21, 1920.

Application filed July 18, 1919. Serial No. 311,766.

ToaZZ whomz't may concern Be it known that 1, JOHN B.-GAeRinLsoN, asubject of the King of Sweden, residing at Hanover, in the county ofYork and State of Pennsylvania, have-invented certain new and usefulImprovements in Radiators, of which the following, taken in connectionwith the accompanying drawings, is a specification.

The invention relates to radiators for motor driven vehicles; and theobject of the improvement is to provide a radiator core construction inwhich provision is made for the absolute holding in alinement of thedifferent corrugated or zigzag plates which form said core in theircontacting relation to one another so that when assembled, said platesform zigzag or serpentine waterways which extend around one side of eachof the air flues, that is, said waterways are preferably alternated witha spacing plate, said spacing plate being held absolutely in alinementby lengthwise ridges or protuberances on opposite edges of the fiatcontacting faces so that the spacing plate fits between said ridges andis held rigidly in line when the ends of the assembled plates are dippedin a solder bath, said alining means holding the thin sheet metal platesfor the entire length of said waterway; and the invention consists inthe novel features and combinations hereinafter set forth and claimed.

In the drawings, Figure 1 is a perspective sectional view of a portionof the sheet metal core, showing the waterways and spacing plates heldin alinement; and Fig. 2 is a front elevation of said portion of saidcore further showing the manner of holding the thin sheet metal platesin alinement. Fig. 3 is a perspective view of one of the plates showingthe lengthwise holding ridge on the opposite sides of adjacentcorrugations in the zigzag-plates forming the waterways. Fig. 4 is aperspective view of one of the spacing plates which does not have saidholding ridge, but is fitted between said lengthwise ridges, the widthof the flat portions of the zigzag spacing plates being proportioned tothe flat surfaces of the corrugated or zigzag plates for the waterways.

Like characters of reference refer to corresponding parts in the severalviews.

The numeral 10 designates the radiator core which is made the desiredsize for cooling the water in themotor. The radiator corelO is made upof zigzag waterways 11 which are formed by zigzag plates 12 and 13 andspacing plates 18. The zigzag plates 12 and 13 have their centralportions bent in opposite.directionsfto form the waterway 11therebetween'. 7

Each; of the plates 12 and 13 have the ridge or protuberances 14lengthwise of the corrugations: and; onopposite sides of the flatportions 15 and 16 so as to hold the flat portions 17 of the spacingplate 18 therebetween, that is, between the alternate proectmglengthwise ridge bends 14 upon the flat spaces 15 and 16 in the metalplates 12 and 13.

The lengthwise ridge bend 14 consists of a continuation of the enlargingbends 19 in the two plates 12 and 13 which form the waterway to form anextending lengthwise protuberance. This continuation of the siclewisebend 19 into a groove on the inner side and lengthwise ridge orprotuberance on the outer side does not strain or break the thin sheetmetal and forms a peculiarly strong holding means for the centralspacing plate 18 between the two projecting ridges 14 on the spaced flatsurfaces 15 and 16. The exceedingly thin sheet metal, preferably copper,which forms the plates 12, 13 and 17 are easily struck up by a suitabledie into the lengthwise ridges 14 at the same time that the entire plateis struck up. It is apparent that when assembled, as shown in Figs. 1and 2, the contacting ends 20 may be dipped in solder, thereby holdingall parts rigid in relation to one another. The alternate projectinridges 14, however, hold t'he plates so rmly together that assembling isexceedingly easy and the plates cannot get out of line in the finishedradiator core.

The placing of the lengthwise ridges 14 on the opposite sides of the twocorrugated metal sheets 12 and 13 are preferably staggered in theirrelation to one another, that is, the ridges 14 on one side of the twoplates when assembled are on opposite sides of one pair of flat surfacesof said corrugated plates,while the ridges 14 on the opposite side ofthe two assembled plates are staggered in opposing relation so that theplates are held more firmly in line as to one another at everycorrugation.

The plates 12 and 13 between the flat surfaces 15 and 16 are preferablycorrugated or undulating in order to give a larger radiating surface asshown in my former Letters Patent No. 1,217,934, dated LIarch 6, 1917.

I claim as new:

1. In a radiator core, pairs of corrugated plates spaced to formvertical waterways and'formed to have spaced flat vertically arrangedwalls, a ridge adjacent the upper edge anda corresponding ridge adjacentthe lower edge of alternate flat walls of said plates, and corrugatedspacin plates having flat walls seated against the irst named fiat wallsand said ridges overlapping and underlapping the respective divergentwalls of the spacing plates, said ridges being composed of outwardlyextending bends formed at the juncture of the fiat walls with theadjacent divergent walls of the first named plates, whereby topositively engage and support, each corrugation at three points.

ing plates having flat walls seated against the first named flat walls,the ridges lapping and engaging the inner faces of the respectivedivergent walls of the spacing plates, whereby to positively engage andsupport each corrugation at three points.

In testimony whereof I have affixed my signature in the presence of twowitnesses.

JOHN B. GABRIELSON.

Witnesses HAROLD FORSBERG, C. V. SWANSON.

